Shadow-boxing
n. （拳击）空拳练习
📖 牛津释义
shadow-boxing
n [U].
🧩 词语组成解析
shadow
['ʃædo]
n. 阴影;影子;鬼，幽灵;隐蔽处;
vt. 投阴影于;使朦胧;跟踪，尾随;预示;
vi. 渐变;阴沉;
adj. 影子内阁的;阴影的;非正式的;
🗣️ 情景例句
What was your best subject in college?
大学时你哪门功课最好？
That's a book.
那是一本书。
tap water that is too hot to touch can be left to cool and is generally safe to drink.
水管中流出的烫手的水可以留下来冷却。这种水一般是安全的。